| Customization: | Available |
|---|---|
| Carbon Content: | High-Carbon |
| Stress: | 10bar |
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Flexible graphite materials are non-fibrous materials. The flexible graphite is made into a sheet and molded into a sealing filler. Flexible graphite, also known as expanded graphite, is the removal of impurities in natural flake graphite. It is then treated with strong oxidizing mixed acid to become graphite oxide. Graphite oxide is decomposed by heat to release carbon dioxide, the volume expands rapidly, and becomes a flexible graphite with loose texture, softness and toughness. The flexible graphite washer, commonly known as the graphite packing ring, is made of a high-purity flexible graphite sheet cut into a certain size of the strip, wound and pressed in a special mold, with the characteristics of flexible graphite. It is suitable for the valve and the mechanical pump sealing packing under the condition of drastic temperature and pressurechange.
L.T Group has a comprehensive product and technology portfolio that focuses on four field of graphite - ultrafine particle graphite mould,graphite electrode, graphite crucible, as well as other products mainly made of graphite.
Graphite materials exhibit unique properties such as good electrical and thermal conductivity, heat and corrosion resistance, low friction, and reduced weight while at the same time maintaining high strength. Due to the shortage of energy and raw materials, our high performance products made from graphite are in increasingly high demand in industries. They also play a progressively important role in everyday life, thereby substituting traditional materials.
Flexible graphite materials are non-fibrous materials. The flexible graphite is made into a sheet and molded into a sealing filler. Flexible graphite, also known as expanded graphite, is the removal of impurities in natural flake graphite. It is then treated with strong oxidizing mixed acid to become graphite oxide. Graphite oxide is decomposed by heat to release carbon dioxide, the volume expands rapidly, and becomes a flexible graphite with loose texture, softness and toughness. The flexible graphite washer, commonly known as the graphite packing ring, is made of a high-purity flexible graphite sheet cut into a certain size of the strip, wound and pressed in a special mold, with the characteristics of flexible graphite. It is suitable for the valve and the mechanical pump sealing packing under the condition of drastic temperature and pressurechange.
Its main characteristics are:
1 Excellent heat resistance and cold resistance. Flexible graphite from the ultra-low temperature of -270 degrees to the high temperature of 3650 degrees (in non-oxidizing gases), its physical properties have almost no change, and it can also be used in the air to about 600 degrees;
2, excellent chemical corrosion resistance. In addition to corrosion in strong oxidizing media such as nitric acid and concentrated sulfuric acid, flexible graphite has almost no corrosion in other acids, bases and solvents;
3, has good self-lubricity. Like natural graphite, flexible graphite is easy to slide between layers under the action of external forces, so it has lubricity, good anti-wear property and small friction coefficient.
4, high rebound rate. When the shaft or shaft sleeve appears radial circular runout due to eccentricity in manufacturing, installation, etc., it has sufficient floating performance, and even if the graphite cracks, it can be well closed, so as to ensure that the fit is tight and prevent leakage.
| Blower (dry operation) | Agitator | Valve | |
| Stress | 10Bar | 50Bar | 800Bar |
| Rotational speed | 10m/s | 5m/s | 2m/s |
| Density | 1.2-1.75g/cm3(normal1.6g/cm3) | ||
| Temperature | 220-500ºC(2800ºCIs the oxidizing range) | ||
| PH value | 0-14 |
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